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M101

 

M101

 

M101 in Ursa Major is a beautiful, large, face-on spiral galaxy of the type Sc, meaning it has extended spiral arms and a very small central bulge. Like in other large nearby spiral galaxies, several knots of emission nebulosity can be recorded on deep photographs. The galaxy is quite near, at a distance of only 18 million lightyears, and is the center of a small group of galaxies with 23 known members, mostly dwarf galaxies. This is a neighbor group to the Local Group of galaxies, of which our Milkyway Galaxy is a member.

M101, Wide Field, the full frame of this photograph.


Exposure Data


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© 2010 Walter Koprolin